Republicans in both houses accused Democrats of drafting plans that would hurt the recession-ravaged economy in the long run, rather than help it, and saddle future generations with too much debt.
"The administration's budget simply taxes too much, spends too much and borrows too much at a moment when we can least afford it," said the Senate Republican leader, Mitch McConnell of Kentucky.
But a Republican alternative fared poorly in the House, where 38 GOP lawmakers voted against a plan supported by their own leadership. Officials ascribed much of the opposition to a provision that called for eliminating traditional fee-for-service Medicare for individuals who reach age 65 in 2020 or later and replacing it with coverage from private insurance companies.
On a long day and night, the House was first to vote, and approved its version of the budget on a 233-196 roll call that fell largely along party lines. It calls for spending of $3.6 trillion for the budget year that begins Oct. 1, and includes a deficit of $1.2 trillion.
The Senate acted a few hours later, with Vice President Joe Biden presiding. The vote was 55-43 for a slightly different blueprint that calls for spending $3.5 trillion and forecasts a deficit of $1.2 trillion.
Both deficit forecasts are exceedingly high by historical standards. But they would represent an improvement over this year's projected total of $1.8 trillion, swollen by spending and tax cuts designed to rejuvenate the economy as well as steps to bail out the financial industry.
The day's events capped a busy three months for the Democratic-controlled Congress that took office in January.
Moving with unusual speed, lawmakers have enacted a $787 billion economic stimulus measure, cleared the way for release of $350 billion in financial industry bailout funds, approved an expansion of children's health care and sent Obama legislation setting aside more than 2 million acres in nine states as protected wilderness.
The White House issued a statement hailing the House vote as "another step toward rebuilding our struggling economy."
And while they represented victories for the administration, the budgets merely cleared the way for work later in the year on key presidential priorities
-- expansion and overhaul of the nation's health care system, creation of a new energy policy and sweeping changes in education.
Major battles lie ahead, particularly over health care and energy. And while Obama made a series of specific proposals to fund his initiatives, congressional budget-writers avoided taking a position on his recommended curtailing of Medicare spending, for example, or imposing hundreds of billions of dollars in new costs on the nation's polluters.
There was no suspense on either side of the Capitol as lawmakers engaged in an annual budget ritual.
In the House, that meant voting first on doomed alternatives drafted by progressives, the Congressional Black Caucus and a splinter group of conservatives. In the Senate, it meant a day of sifting through nonbinding proposals often meant to score political points.
The House plan called for spending $3.6 trillion in the budget year that begins Oct. 1, according to the Congressional Budget Office, compared with $3.5 trillion for the Senate version and $3.6 trillion for Obama's original plan.